2581070748172 has 96 divisors (see below), whose sum is σ = 5285141568000. Its totient is φ = 1102472594496.

The previous prime is 2581070748167. The next prime is 2581070748281. The reversal of 2581070748172 is 2718470701852.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 765213478 + ... + 765216850.

It is an arithmetic number, because the mean of its divisors is an integer number (55053558000).

Almost surely, 2^{2581070748172} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2581070748172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2642570784000).

2581070748172 is an abundant number, since it is smaller than the sum of its proper divisors (2704070819828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2581070748172 is a wasteful number, since it uses less digits than its factorization.

2581070748172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100 (or 5084 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 52.

The spelling of 2581070748172 in words is "two trillion, five hundred eighty-one billion, seventy million, seven hundred forty-eight thousand, one hundred seventy-two".